Over the last few days Yahoo have started to severely rate limit all of our network ranges with the TS02 message.
Normally we get this on various queues and we respond accordingly tweaking the rates and re-routing traffic etc, however we are seeing across the board in the last few days.
This includes dedicated IP addresses that are used for high volume transactional emails such as hotel bookings, and the addresses have impeccable sender reputation.
Is anyone else seeing this across there ranges? or is Yahoo in meltdown and can't cope with the volume.
Our traffic volumes have increased slightly but noting major maybe 10% and we have not been generating significant volumes of user complaints.
We are not having any issues with the other ISP's and have instances where one IP is capped at 30,000 per hour to hotmail and is struggling to send 300 per hour to Yahoo